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Diodes Incorporated PI3L2500ZHEX
- Part No.:
- PI3L2500ZHEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Analog Switches - Special Purpose
- Package:
- 42-VFQFN Exposed Pad
- Datasheet:
-
PI3L2500ZHEX.pdf
- Description:
- IC LAN SWITCH V-QFN3590-42
- Quantity:
- Payment:
- Shipping:
Inventory:23,450
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Product details
Overview
PI3L2500ZHEX from Diodes Incorporated is an 8-channel, bidirectional 2:1 differential multiplexer/demultiplexer LAN switch for 1000/2500/10000 Base-T Ethernet applications. It features <250 ps propagation delay, 3 GHz bandwidth, <200 ps bit-to-bit skew, –53 dB crosstalk at 400 MHz, and integrated power-down mode (PD pin) enabling standby operation without external switching.
For engineers reviewing the PI3L2500ZHEX datasheet, PI3L2500ZHEX pinout, PI3L2500ZHEX application, or PI3L2500ZHEX equivalent, key selection criteria include differential signal integrity at 10 Gbps, channel isolation under high-frequency noise, RoHS-3/Green compliance, TQFN-42 package thermal and routing constraints, and LED status indicator integration with Ethernet pair switching.
Technical Context
The PI3L2500ZHEX implements a fully differential, rail-to-rail analog switch architecture optimized for Gigabit+ Ethernet PHY layer signal routing. Its 8-channel configuration supports four differential pairs (A0–A3, B0–B3, C0–C3), with SEL pin selecting between B or C output paths while maintaining A as common input.
It operates from 3.0 V to 3.6 V, integrates ESD protection (4 kV HBM, 1 kV CDM) on all I/O and LED pins, and uses internal logic to synchronize LED indicators (LEDA0–LEDC2) with active signal path selection - eliminating need for external GPIO control in docking or dual-PHY sharing systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 3 GHz - preserves signal integrity up to 10 Gbps NRZ data rates without equalization. |
| Propagation Delay | <250 ps - enables tight timing alignment across 8 differential channels in multi-gigabit PHY routing. |
| Bit-to-Bit Skew | <200 ps - ensures deterministic inter-pair timing for IEEE 802.3an/ba compliant 10GBASE-T operation. |
| Crosstalk | –53 dB @ 400 MHz - suppresses coupling between adjacent Ethernet pairs routed through shared PCB traces. |
| Supply Range | +3.0 V to +3.6 V - compatible with standard 3.3 V Ethernet PHY power domains and low-dropout regulators. |
| ESD Protection | 4 kV HBM / 1 kV CDM - protects A/B/C/LED pins against handling and system-level electrostatic discharge events. |
Pinout & Package
Package: 42-contact Very Thin Quad Flat No-Lead (TQFN), 3.5 mm × 9.0 mm, 0.5 mm pitch, RoHS-3 and Halogen/Antimony-free "Green" compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0+ / A0− to A3+ / A3− | Differential Input Pair (Common) | Accepts 4 differential signals from single Ethernet PHY; routed to either B or C outputs based on SEL state. |
| B0+ / B0− to B3+ / B3− | Differential Output Path 1 | Active when SEL = low; connects to first RJ45 port or isolation transformer bank. |
| C0+ / C0− to C3+ / C3− | Differential Output Path 2 | Active when SEL = high; routes same PHY signals to second connector or docking interface. |
| SEL | Path Selection Control | CMOS-compatible logic input determining B (SEL=0) or C (SEL=1) output activation; no pull-up/down required. |
| PD | Power-Down Enable | Active-high input disabling internal bias circuitry and placing all switches in Hi-Z state to reduce quiescent current to <1 µA. |
| LEDA0–LEDA2 / LEDB0–LEDC2 | Status Indicator Outputs | Open-drain drivers synchronized to active path (A→B or A→C); sink up to 8 mA per LED for visual port/activity feedback. |
Key Features
| Feature | Design Value |
|---|---|
| Hi-Z outputs during power-down | Enables hot-swap capability and prevents signal contention when PD=1, critical for docking station reconfiguration. |
| Integrated LED status drivers | Eliminates need for 9 external current-limiting resistors and GPIO expanders in dual-port Ethernet designs. |
| Low channel resistance & capacitance | Directly achieves <250 ps propagation delay and preserves eye diagram margin at 10 Gbps over CAT6 UTP. |
| Channel-to-channel noise isolation | –53 dB crosstalk at 400 MHz ensures minimal interference between adjacent 1000BASE-T/2500BASE-T pairs on shared PCB layers. |
Applications
| Desktop Docking Station | Industrial Dual-Port Ethernet Switch |
|---|---|
|
Use Scenario: A laptop docks into a cradle supporting two independent 2.5GBASE-T Ethernet ports via single onboard PHY. IC Role / Device Role / Timing Role: 2:1 Mux/DeMux routes PHY differential pairs to either front-panel or rear-panel RJ45 jack based on mechanical latch detection. Use Value: Reduces BOM count by replacing two discrete Ethernet PHYs and associated magnetics with one PHY + PI3L2500ZHEX + dual transformers. |
Use Scenario: Programmable logic controller (PLC) requires redundant Ethernet interfaces with automatic failover between primary and backup ports. IC Role / Device Role / Timing Role: Selects active signal path (B or C) under firmware control while maintaining sub-200 ps skew for deterministic packet timing. Use Value: Enables seamless switchover without link renegotiation delay, meeting IEC 61131-3 real-time communication requirements. |
| Server Blade Management Interface | Automotive Diagnostic Gateway |
|
Use Scenario: Server blade shares single 10GBASE-T PHY between baseboard management controller (BMC) and host CPU for out-of-band and in-band traffic. IC Role / Device Role / Timing Role: SEL-controlled path selection isolates BMC traffic from host traffic while preserving signal fidelity at 10 Gbps. Use Value: Avoids PHY duplication and reduces thermal load in space-constrained 1U chassis without compromising diagnostic latency. |
Use Scenario: In-vehicle diagnostic gateway routes UDS-over-IP traffic between vehicle backbone (1000BASE-T1) and service tool (1000BASE-T) via Ethernet bridge. IC Role / Device Role / Timing Role: Muxes diagnostic PHY output to either OBD-II port or wireless module interface under CAN-triggered SEL command. Use Value: Supports simultaneous wired/wireless diagnostics without adding latency or jitter to ISO 13400-2 message timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed differential multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3L501EPRSNR | 4-channel, 2:1 mux; 2.5 GHz bandwidth; no integrated LED drivers; 16-pin QFN. | Lacks status indication and 4-channel scalability; suitable only for single-pair routing (e.g., USB 3.1 Gen1). | Select when board space is constrained and LED feedback is handled externally. |
| MAX4947ETE+ | 8-channel, 2:1 mux; 1.2 GHz bandwidth; ±5 V supply capable; no power-down mode; 20-pin TQFN. | Lower bandwidth limits use to 1000BASE-T only; higher supply range adds complexity in 3.3 V-only systems. | Prefer for legacy industrial systems requiring dual-supply tolerance and no 2.5/10GBASE-T support. |
Compared with TS3L501EPRSNR and MAX4947ETE+, the PI3L2500ZHEX uniquely delivers 3 GHz bandwidth, integrated LED drivers, and power-down mode in a single 42-pin TQFN - making it the only option qualified for 10GBASE-T docking and dual-port failover where signal integrity, visual status, and low-power standby are co-required.
Availability
PI3L2500ZHEX is available at Aetrix Electronics and suitable for desktop docking stations, industrial PLCs, server blade management interfaces, and automotive diagnostic gateways requiring stable component supply and full RoHS-3/Green compliance.
Supply support for PI3L2500ZHEX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and Europe, serving industrial, computing, and communications markets.
The PI3L2500ZHEX belongs to Diodes' high-speed signal-switching product line, engineered specifically for Gigabit+ Ethernet infrastructure where low skew, high isolation, and integrated status signaling reduce system-level design complexity.
FAQ
What is the maximum data rate supported by the PI3L2500ZHEX?
The PI3L2500ZHEX supports 10GBASE-T (10 Gbps) operation with verified signal integrity up to 3 GHz bandwidth and <250 ps propagation delay. It maintains eye opening and jitter margins per IEEE 802.3an specifications when used with CAT6 UTP and standard Ethernet magnetics.
Does the PI3L2500ZHEX require external termination resistors?
No. The PI3L2500ZHEX is designed for direct connection to Ethernet PHY outputs and transformer-coupled inputs without external termination. Its 50 Ω channel impedance and low I/O capacitance (<0.3 pF) match standard 100 Ω differential Ethernet traces without added resistive loading.
How does the power-down mode affect signal path behavior?
When PD = high, all internal switch elements enter high-impedance state, disconnecting A-to-B and A-to-C paths. Differential outputs float with >1012 Ω isolation, preventing DC loading or AC coupling issues. Quiescent current drops below 1 µA, enabling zero-power standby in battery-backed docking systems.
Can the LED driver outputs be used with standard 2 mA indicator LEDs?
Yes. Each LEDx pin drives up to 8 mA sink current with 0.4 V typical saturation voltage at 5 mA. With a 3.3 V supply and 2 mA LED, a 1.5 kΩ series resistor provides proper bias - no additional current regulation or buffering is needed for common green/red/yellow indicators.
PI3L2500ZHEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 42-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Telecommunications
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Switch Circuit:
- SPDT
- Number of Channels:
- 8
- On-State Resistance (Max):
- -
- Voltage - Supply, Single (V+):
- 3V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- -3db Bandwidth:
- 3GHz
- Features:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 42-TQFN (9x3.5)
PI3L2500ZHEX FAQ
1.How can I place an order for PI3L2500ZHEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3L2500ZHEX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PI3L2500ZHEX reliable?
The price and inventory of PI3L2500ZHEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3L2500ZHEX is usually 5 days.
3.What payment methods are accepted for PI3L2500ZHEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3L2500ZHEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3L2500ZHEX?
PI3L2500ZHEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3L2500ZHEX order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PI3L2500ZHEX?
For technical support, including PI3L2500ZHEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3L2500ZHEX requirements.
6.How does Aetrix verify that PI3L2500ZHEX is sourced from the original manufacturer or authorized distributors?
All PI3L2500ZHEX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PI3L2500ZHEX meets industry standards.
7.What is the process for return or replacement of PI3L2500ZHEX?
All PI3L2500ZHEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3L2500ZHEX, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PI3L2500ZHEX part is unused and in its original packaging.
Return procedure for PI3L2500ZHEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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